首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   25225篇
  免费   1063篇
  国内免费   19篇
  2023年   136篇
  2021年   230篇
  2020年   423篇
  2019年   508篇
  2018年   669篇
  2017年   642篇
  2016年   734篇
  2015年   500篇
  2014年   670篇
  2013年   2777篇
  2012年   1136篇
  2011年   1188篇
  2010年   788篇
  2009年   823篇
  2008年   1122篇
  2007年   1091篇
  2006年   1055篇
  2005年   930篇
  2004年   927篇
  2003年   910篇
  2002年   883篇
  2001年   418篇
  2000年   409篇
  1999年   397篇
  1998年   377篇
  1997年   361篇
  1996年   291篇
  1995年   306篇
  1994年   291篇
  1993年   275篇
  1992年   261篇
  1991年   257篇
  1990年   239篇
  1989年   218篇
  1988年   193篇
  1987年   213篇
  1986年   209篇
  1985年   256篇
  1984年   268篇
  1983年   231篇
  1982年   234篇
  1981年   256篇
  1980年   225篇
  1979年   209篇
  1978年   222篇
  1977年   195篇
  1976年   197篇
  1975年   158篇
  1974年   180篇
  1973年   140篇
排序方式: 共有10000条查询结果,搜索用时 59 毫秒
971.
972.
This essay challenges a “meta‐theory” in just war analysis that purports to bridge the divide between just war and pacifism. According to the meta‐theory, just war and pacifism share a common presumption against killing that can be overridden only under conditions stipulated by the just war criteria. Proponents of this meta‐theory purport that their interpretation leads to ecumenical consensus between “just warriors” and pacifists, and makes the just war theory more effective in reducing recourse to war. Engagement with the new meta‐theory reveals, however, that these purported advantages are illusory, made possible only by ignoring fundamental questions about the nature and function of political authority that are crucial to all moral reflection on the problem of war.  相似文献   
973.
974.
A prominent political historian has recently identified unwarranted optimism and unwarranted pessimism as democracy's “dual dangers.” While this historical analysis highlights the difficulties that accompany democratic hope, our prevailing conceptual vocabulary obscures the resources needed to address them. This essay attempts to recover these resources by excavating insights from Thomas Aquinas, who supplies one of the most systematic accounts of hope in the history of religious and political thought. By appropriating the conceptual structure of Thomas's theological virtue of hope, this essay reconstructs a democratic virtue that perfects acts of hoping in fellow citizens to achieve democratic goods and thereby enables citizens to respond properly to difficulties that tempt presumption and despair.  相似文献   
975.
OBJECTIVE: Fibromyalgia (FM) syndrome is a chronic pain condition characterized by diffuse muscle pain, increased negative mood, and sleep disturbance. Until recently, sleep disturbance in persons with FM has been modeled as the result of the disease process or its associated pain. The current study examined sleep disturbance (i.e., sleep duration and sleep quality) as a predictor of daily affect, stress reactivity, and stress recovery. DESIGN AND MEASURES: A hybrid of daily diary and ecological momentary assessment methodology was used to evaluate the psychosocial functioning of 89 women with FM. Participants recorded numeric ratings of pain, fatigue, and positive and negative affect 3 times throughout the day for 30 consecutive days. At the end of each day, participants completed daily diary records of positive and negative life events. In addition, participants reported on their sleep duration and sleep quality each morning. RESULTS: After accounting for the effects of positive events, negative events, and pain on daily affect scores, it was found that sleep duration and quality were prospectively related to affect and fatigue. Furthermore, the effects of inadequate sleep on negative affect were cumulative. In addition, an inadequate amount of sleep prevented affective recovery from days with a high number of negative events. CONCLUSIONS: These results lend support to the hypothesis that sleep is a component of allostatic load and has an upstream role in daily functioning.  相似文献   
976.
977.
978.
979.
980.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号